Cap form waxing device for use in a paper bottle capping machine



Aug. 16, 1938. v I F MANDELL 2,127,180

CAP FORM WAXING DEVICE FOR USE IN A PAPER BOTTLE CAPPING MACHINE Filed Sept. 29, 1936 5-Sheets-Sheet 1 Aug. 16, 1938. 1. F. MANDELL 2,127,130

CAP FORM WAXING DEVICE FOR USE IN A P APER BOTTLE CAPPING MACHINE Filed Sept. 29, 1936 5 Sheets-Sheet 2- mum 7w? K MAM Di L L Aug. 16, 1938. MANDELL 2,127,180 I CAP FORM WAXING DEVICE FOR USE IN A PAPER BOTTLE CAPPING MACHINE D Filed Sept. 29, 1936 5 Sheets-Sheet 3 46* 44 47 42%; 53 46 i 2) 0 /0 r 7/ 36 E W 1115; 9 9 flx/(I I, EVESJLQ 3 7. 4l jj'i i0} 3 :19 29 42 i :21/ x Q I F/G. 4

Aug 16, 1938. L N 2,3273% CAP FORM WAXING DEVICE FOR USE IN A PAPER BOTTLE CAPPING MACHINE Filed Sept. 29,. 1936 s Sheets-Sheet 4 Aug. 16, 1938; I F, ANDEL 2,127,180

CAP FORM WAXING DEVICE FOR USE IN A PAPER BOTTLE CAPPING MACHINE Fi led Sept. 29, 1936 s Sheets-Sheet 5 Patented Aug. 16, 1938 FFICE (ZAP FORM WAXING DEVICE FOR USE IN A PAPER BOTTLE CAPPING MACHINE Irving F. Mandell, North Quincy, Mass, assignor to Reinforced Paper Bottle Corporation, New York, N. Y., a corporation of Delaware Application September 29, 1936, Serial No. 103,172

2 Claims.

My invention relates to improvements in cap form waxing devices for use in a paper bottle capping machine, and the object of the invention is to devise simple means for automatically receiving the cap forms from the main feeding and printing mechanism of the capping machine, for feeding the received cap forms through a wax bath, and for transferring the waxed cap forms from the bath into receiving mechanism for conveying them to the forming mechanism performing the next operation of the capping machine, and for ensuring the time of immersion in a wax bath maintained at constant level and even temperature is suflicient for the proper sterilization of the capforms prior to contact with the bottle.

Fig. 1 is a side elevation of the waxing device showing its position in relation to the printing mechanism and forming dies.

Fig. 2 is a plan view of the parts illustrated in Fig. 1, the tank covers and conveyor chains of the immersion tank being removed.

Fig. 3 is an elevation of the right hand end of the waxing mechanism, the forming dies and mechanism for transferring the cap forms from y the waxing device to the forming dies being removed.

Fig. 4 is a sectional view taken on line 4--4 Fig. 2. p 1

Fig. 5 is a transverse sectional view on line 5--5 Fig. 2.

Fig. 6 is an enlarged elevation of the mechanism for transferring the waxed forms from the immersion tank to the form receiving arm of the cap forming mechanism,

Fig. '7 is an enlarged perspective detail of the major portion of the mechanism illustrated in Fig. 6 and showing the position of the immersion tank indicated by dot dash lines.

In the drawings like letters of reference indi-- cate corresponding parts in the difierent views.

I indicates the main frame of the capping machine on which are supported the cap form printing mechanism A, the forming mechanism B and the cap form waxing mechanism C interposed between the printing mechanism A and forming mechanism B. The cap form printing mechanism A and the cap forming mechanism B form the subject matter of separate applications, the waxing mechanism C being the subject matter of the present application. Y

2 is the vertically movable printing head provided with a printing plate 3 coacting with a platen 4 carried on the platen support 5. 6 is a chain conveyor provided with lugs 1 by which the cap forms are carried onto the platen 4 beneath the printing plate 3 for the printing operation and after the printing operation are again carried by the lugs 1 forward to the waxer C, the construction of which I will now describe.

8 is the heating tank of the waxer provided with a top opening 8 beneath which is supported on lugs 8 an immersion tray or bath 9. I and II are side plates extending upwardly from the longitudinal edges of the opening 8 and suitably secured to the tank 8.

I2 and i3 are end plates provided respectively with openings [2 and i3 to permit of the ingress and egress of the cap forms. are covers held in place by the ribs l2 and I3. Adjacent to the ingress orifice l2 are upper and lower shafts l4 and i journalled in the side plates Ill and II. It; is a grooved roller secured to the shaft id to coact with the roller I'l free on the shaft to feed the cap forms forward. l8, l9 and are shafts also journalled in the side plates I0 and H. [4 is a gear secured to the shaft l4 and meshing with a gear II mounted on the shaft I5 and connected to the roller I! to ensure positive coaction between the rollers l6 and H.

To the shaft I8 is secured a pair of sprocket gears 2| spaced equally each side of the centre of the tank 8. In a line with the sprocket gears 2| are sprocket gears 22 secured to the shaft 19. In the same vertical plane as the sprocket gears 2| and 22 are sprocket'gears 23 secured to the shaft [4 and sprocket gears 24 secured to the shaft 20. On each set of sprocket gears 23, 2|, 22 and 24 are mounted endless feed chains 25 running parallel to each other and provided with feed lugs 25 similar to the lugs I of the printing mechanism hereinbefore described.

On the shafts I8 and I9 are mounted parallel bar brackets 26 at the outside of each pair of sprocket gears 2|, 23 by hangers 26 To the bar portions of the brackets 26 are secured transverse bars 21 to which are spot welded, or otherwise suitably secured, cap form guide rails 28 having upwardly inclined forward ends 28 and upwardly inclined rear ends 28, the inclined forward 'ends 28 terminating in horizontal portions 28 beveled at 29 to permit the cap form passing easily thereonto as it is fed by the feed chains 6 of the printing mechanism to the feed rollers l6 and [1.

' As the feed rollers pass the cap'forms forward, the lugs 25 engage the rear edge of each form carrying them forward over the guide rails 28 guided downward by the rail portions 28 and'the l2 and I3,

portions of the feed chains 25 paralleling the same and beneath the surface of the liquid wax contained in the tray 9 to pass horizontally beneath such surface to the'upwardly inclined guide portions 28 up which the caps are carried.

29 is a shaft journalled in the side plates l5 and II adjacent to the guide rail portions 38. 35 is a discharge roller secured to the shaft 29. 3| is a rod secured in the plates IQ and II and on which are swung arms 32 in which, at their free ends, is journalled a shaft 33 on which is mounted a roller 34 restingupon the roller 35. 35 is' a U-shaped guide member secured to the'rod' 3|. and provided with tongues 35 to guide the cap forms to between the rollers 35and 34.

35 is a gear secured to the shaft 29. 31 is a shaft mounted in a suitable bearing bracket carried' by the tank 8. 38 is a pinion securedto the shaft 31 and meshing with the gear 35. 39 is a sprocket gear also secured to the shaft 31 and driven as hereinafter described.

Secured to the shaft 31 is an eccentric 45 shown in the forward position in Fig. 1 and the rear position in Fig. 6 provided with an eccentric strap 4| provided with an arm 4| and 9. lug 4|. 42 is an adjustable binding rod pivoted at 42 on the boss 43. The opposite end of the rod 42- is pivotally connected at 42 to thelug 4|".

44 is an arm swung upon a pin 44 carried in a bracket 4.5 carried by the base of'the tank 8. 45 isa link pivotaily connectedat one end to. the upper end of the arm 4| X and at theopposite end 'upon a shaft 45 journalled in the sleeve like upper end 44 of the arm 44. The shaft 45 is provided beyond the sleeve 44 with a squared Portion 45 to which is secured a bracket 45' in which is journalled a roller 41.. Also fixed on the.

squared portion 48 are a pair of hooked fingers 41X.

48 is the transfer arm of the forming m'echanism B, provided with a cap'form receiving recess The arm 48 is reciprocated by mechanism so- 48 that each cap form received in the recess is carried into the forming dies to be further operated upon. This mechanism I do not further describe as' it forms part of the mechanism B forming the subject matter of a separate application.-

Secured toand extending outwardly from the v end plate I3 is a pair of brackets 48 and 55 (see Fig. 7) provided with depending lugs 49 and 50 is a bridging piece provided with end extensions 5| and 5I secured to the bottom face of the depending lugs 49 and NV. 52 are guide rails spot welded or otherwise .secured to the bridging piece 5|. The cap formsras they leavethe rollers 30 and 34; pass onto the guide rails 52.

Bythe rotation of the eccentric 40, thearms 4 l X and and link 45 are carried towards the'tank 8 carrying the hooked ends of the fingers 41 over the discharged cap form resting on the guide rails 52 so that-the hooked ends of the fingers drop behind the rear edge of the form. As the arms 4.| and 44 are swung in the reverse direction by the eccentric 45, the hooked ends of the fingers 41 engage the peripheral edge of the cap form so as to draw it over the recess 48 into which the form drops. v

In order to ensure. that'the cap form fits into the bottom of the recess 45 I provide the followand provided with a foot 51 (see Fig. 7)

- a bell crank bracket pivoted at 58 ing the cap forms through the tank are oper- Freely mounted on the portion 54 is a sleeve 55 held in place by the collar 54.

55 is a block formed integral with the sleeve 55. 51 is a lug also formed integral with the sleeve 55 bar secured to the lower fiat face of the hexago-v nal portion of the stud 54. 59 is a tension spring anchored at one end at 59 to the bar 58 and to by rocking the sleevej55 counterclockwise and carrying .the ends 58 of the bifurcated member 55 downward against the upper faceof the cap 20 form fed into the recess 48* by the fingers 41 so as to force such cap form firmly into the bottom of the recess 48 When the roller 41 returns; the sleeve 55 and portion 55 are carried back to their normal position by the'spring 59.

In order to maintain the melted wax at the temperaturerequired, I provide two heating ele-, ments 52 and 52 (see Fig. 1) secured in the wall of the heating-tank 8 and in order to ensure evenness of temperature this heated wax is pumped up into thetray .9 by the pump 6|? and allowed to overflow into the tank so that the wax is always maintained at a' definite level irrev spective of the varying level in the tank 5. 52 is the inlet. pipe and 53 the outlet pipe of the pump 54 is a battle plate extending over the open discharge end of the pipe 53 so as to prevent the heated wax being pumpedtoohigh.

In order that the various parts may be 'operated in unison I provide'the following drive.

- 54 is the main drive shaft vto which is secured the sprocket gear 55. 55 is a sprocket gear secured to a suitably journalled shaft 51. 58 is I 59 is a shaft journalled in one arm of the bracket 58. The other arm of the bell crank is provided with a concentric slot'10 through which extends a securing bolt 1|.

13 is the shaft of the pump 5| journalled "in a bearing 13* and to which is secured the sprocket pinion 14. 15 is a sprocket chain extending]. around the sprocket gears 14 and 15. -11 is a chain engaging the sprockets 55, 55, 15 and '38. From the sprocket wheel "the-gears 38 and 35 are rotated driving the shaft 29 which is connected by the intermeshing gears 29 and 28 to the shaft 25 to. drive the carrier chains 25. By this means the pump 5 and mechanism for feedated from the same drive shaft. The sprocket gears 15 and 15 serve as tighteners for the chains 15 and 11. The sprocket 15 is a double sprocket to accommodate the chains 15 and 11.

' What I claim as my invention is:- 1. In a cap form waxing device, a liquid wax containing tank having an ingress opening and an egress opening at opposite ends, a waxing pan supported in the tank between the ingress and egress openings, suitably driven sprockets and sprocket chains mounted thereon to form parallel horizontal lower runs submerged in the wax of the pan, cap form guiding means beneath the sprocket chains, and feed fingers extending from the sprocket chains to engage the cap forms and push them forward over the guid- 7 ried by the same movement into engagement with the depending end 5| of the bolt 5| thereing means towards the egress opening as the chains revolve.

2. In a cap form waxing machine, a liquid wax containing tank having an ingress and egress opening at opposite ends, a waxing pan supported in the tank between the ingress and egress openings, suitably driven sprockets, an endless sprocket chain arranged to form a horizontal lower run extending beneath wax level of the pan, a guide rail extending parallel to and beneath the lower runof the sprocket chains and having inclined ends leading uptowards the ingress and egress openings, and feed lugs extending from the sprocket chain to engage the capforms to push them forward over the guide rails from the ingress towards the egress opening.

IRVING F. MANDELL. 

